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parameter_types_helpers.go
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/
parameter_types_helpers.go
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package v1beta1
import (
"fmt"
"reflect"
"strconv"
"sigs.k8s.io/yaml"
)
func (p *Parameter) IsImmutable() bool {
return p.Immutable != nil && *p.Immutable
}
func (p *Parameter) IsRequired() bool {
return p.Required != nil && *p.Required
}
func (p *Parameter) IsEnum() bool {
return p.Enum != nil
}
func (p *Parameter) HasDefault() bool {
return p.Default != nil
}
func (p *Parameter) EnumValues() []string {
if p.IsEnum() {
return *p.Enum
}
return []string{}
}
func (p *Parameter) ValidateDefault() error {
if err := ValidateParameterValueForType(p.Type, p.Default); err != nil {
return fmt.Errorf("parameter %q has an invalid default value: %v", p.Name, err)
}
if p.IsEnum() {
if err := ValidateParameterValueForEnum(p.EnumValues(), p.Default); err != nil {
return fmt.Errorf("parameter %q has an invalid default value: %v", p.Name, err)
}
}
return nil
}
// ValidateValue ensures that a the given value is valid for this parameter
func (p *Parameter) ValidateValue(pValue string) error {
if p.IsRequired() && !p.HasDefault() && pValue == "" {
return fmt.Errorf("parameter %q is required but has no value set", p.Name)
}
if pValue == "" {
return nil
}
if err := ValidateParameterValueForType(p.Type, pValue); err != nil {
return fmt.Errorf("parameter %q has an invalid value %q: %v", p.Name, pValue, err)
}
if p.IsEnum() {
if err := ValidateParameterValueForEnum(p.EnumValues(), pValue); err != nil {
return fmt.Errorf("parameter %q has an invalid value %q: %v", p.Name, pValue, err)
}
}
return nil
}
func ValidateParameterValueForType(pType ParameterType, pValue interface{}) error {
switch pType {
case StringValueType:
_, ok := pValue.(string)
if !ok {
return fmt.Errorf("type is %q but format is invalid: %s", pType, pValue)
}
case IntegerValueType:
return validateIntegerType(pValue)
case NumberValueType:
return validateNumberType(pValue)
case BooleanValueType:
return validateBooleanType(pValue)
case ArrayValueType:
return validateArrayType(pValue)
case MapValueType:
return validateMapType(pValue)
}
return nil
}
func validateIntegerType(pValue interface{}) error {
switch v := pValue.(type) {
case int, int8, int16, int32, int64:
return nil
case uint, uint8, uint16, uint32, uint64:
return nil
case string:
_, err := strconv.ParseInt(v, 10, 64)
if err != nil {
return fmt.Errorf("type is %q but format of %q is invalid: %v", IntegerValueType, pValue, err)
}
default:
return fmt.Errorf("type is %q but format of %s is invalid", IntegerValueType, pValue)
}
return nil
}
func validateNumberType(pValue interface{}) error {
switch v := pValue.(type) {
case int, int8, int16, int32, int64:
return nil
case uint, uint8, uint16, uint32, uint64:
return nil
case float32, float64:
return nil
case string:
_, err := strconv.ParseFloat(v, 64)
if err != nil {
return fmt.Errorf("type is %q but format of %q is invalid: %v", NumberValueType, pValue, err)
}
default:
return fmt.Errorf("type is %q but format of %s is invalid", NumberValueType, v)
}
return nil
}
func validateBooleanType(pValue interface{}) error {
switch v := pValue.(type) {
case bool:
return nil
case string:
_, err := strconv.ParseBool(v)
if err != nil {
return fmt.Errorf("type is %q but format of %q is invalid: %v", BooleanValueType, pValue, err)
}
default:
return fmt.Errorf("type is %q but format of %s is invalid", BooleanValueType, pValue)
}
return nil
}
func validateArrayType(pValue interface{}) error {
t := reflect.TypeOf(pValue)
switch t.Kind() {
case reflect.Slice, reflect.Array:
return nil
case reflect.String:
str, _ := pValue.(string) // We know here this is a string
var result []interface{}
if err := yaml.Unmarshal([]byte(str), &result); err != nil {
return fmt.Errorf("type is %q, but format of %s is invalid", ArrayValueType, pValue)
}
return nil
default:
return fmt.Errorf("type is %q but value %s is not an array", ArrayValueType, pValue)
}
}
func validateMapType(pValue interface{}) error {
t := reflect.TypeOf(pValue)
switch t.Kind() {
case reflect.Map, reflect.Struct:
return nil
case reflect.String:
str, _ := pValue.(string) // We know here this is a string
var result map[string]interface{}
if err := yaml.Unmarshal([]byte(str), &result); err != nil {
return fmt.Errorf("type is %q, but format of %s is invalid", MapValueType, pValue)
}
return nil
default:
return fmt.Errorf("type is %q but value %s is not a map", MapValueType, pValue)
}
}
func ValidateParameterValueForEnum(enumValues []string, pValue interface{}) error {
for _, eValue := range enumValues {
if pValue == eValue {
return nil
}
}
return fmt.Errorf("value is %q, but only allowed values are %v", pValue, enumValues)
}
// GetChangedParamDefs returns a list of parameters from ov2 that changed based on the given compare function between ov1 and ov2
func GetChangedParamDefs(p1, p2 []Parameter, isEqual func(p1, p2 Parameter) bool) []Parameter {
changedParams := []Parameter{}
for _, p1 := range p1 {
for _, p2 := range p2 {
if p1.Name == p2.Name {
if !isEqual(p1, p2) {
changedParams = append(changedParams, p2)
}
}
}
}
return changedParams
}
// GetAddedParameters returns a list of parameters that are in oldOv but not in newOv
func GetRemovedParamDefs(old, new []Parameter) []Parameter {
return GetAddedParameters(new, old)
}
// GetAddedParameters returns a list of parameters that are in newOv but not in oldOv
func GetAddedParameters(old, new []Parameter) []Parameter {
addedParams := []Parameter{}
NewParams:
for _, newParam := range new {
for _, oldParam := range old {
if newParam.Name == oldParam.Name {
continue NewParams
}
}
addedParams = append(addedParams, newParam)
}
return addedParams
}
// ParameterDiff returns map containing all parameters that were removed or changed between old and new
func ParameterDiff(old, new map[string]string) map[string]string {
changed, removed := RichParameterDiff(old, new)
// Join both maps
for key, val := range removed {
changed[key] = val
}
return changed
}
// RichParameterDiff compares new and old map and returns two maps: first containing all changed/added
// and second all removed parameters.
func RichParameterDiff(old, new map[string]string) (changed, removed map[string]string) {
changed, removed = make(map[string]string), make(map[string]string)
for key, val := range old {
// If a parameter was removed in the new spec
if _, ok := new[key]; !ok {
removed[key] = val
}
}
for key, val := range new {
// If new spec parameter was added or changed
if v, ok := old[key]; !ok || v != val {
changed[key] = val
}
}
return
}